Procedure

1. Select the tuning forks of known frequency.
2. Click the ‘Resonator Button” to fill the resonator with water up to the neck.
3. Click the ‘Start Button’ to vibrate the tuning fork from the top of the mouth of the resonator and allow water to flow out of the bottle in drops.
4. Click the ‘Add to table’ button to save the observations in a table.
5. Select the next tuning fork and repeat the previous steps
6. finally, select the tuning fork having an unknown frequency and repeat the previous steps.
7. Click the “Observations” button to display the observation table.
8. Click the “ Graph’ button to display the graph and to show the unknown frequency from the graph.